Diascia plant named ‘Diasroroc’

ABSTRACT

A new  Diascia  plant particularly distinguished by its rosy white flowers, which produces no seeds, and has a growing habit that is compact.

Latin name of the genus and species of the plant claimed: Diascia barberae.

Varietal denomination: ‘Diasroroc’.

BACKGROUND OF THE NEW PLANT

The present invention comprises a new distinct cultivar of Diascia, botanically known as Diascia barberae.

The new cultivar is propagated from cuttings resulting from the cross of ‘B 120-1’ and ‘B 118-1’. ‘B 120-1’ is a pink flowering Diascia. ‘B 120-1’ is not commercially available and is not known by any synonyms. ‘B 118-1’ is an apricot flowering Diascia. ‘B 118-1’ is not commercially available and is not known by any synonyms. Neither ‘B 120-1’ nor ‘B 118-1’ has been patented.

As a result of this cross the present cultivar was created in 2000 in Enkhuizen, Netherlands and has been repeatedly asexually reproduced by cuttings in Enkhuizen, Netherlands and Sarrians, France over a three-year period. It has been found to retain its distincitve characteristics through successive propagations. The new variety is stable and reproduces true to type in successive generations of asexual reproductions.

This new Diascia plant is an annual in most climatical zones in the US, only in zones 7, 8, 9 and 10 it is a perennial plant.

DESCRIPTION OF THE DRAWING

This new Diascia plant is illustrated by the accompanying photographic drawing which shows blooms, buds and foliage of the plant in full color, the color shown being as true as can be reasonably obtained by conventional photographic procedures.

DESCRIPTION OF THE NEW CULTIVAR

The following detailed descriptions set forth the distinctive characteristics of this new Diascia. The data which defines these characteristics were collected from asexual reproductions carried out in Enkhuizen, Netherlands. The plant history was taken on 10 weeks old plants, cultured in 10.5 cm containers, blossomed under natural light in a greenhouse.

Color readings were taken in the greenhouse under ambient light. Color references are primarily to The R.H.S. Colour Chart of The Royal Horticultural Society of London.

TABLE 1 Differences between the new cultivar ‘Diasroroc,’ its parents and a similar cultivar ‘Diasroroc’ ‘B 120-1’ ‘B 118-1’ ‘Diastu’ Flower color Rose-white Pink Apricot Lavender rose Plant size Small Medium Small Medium Leaf size Large Medium Small Medium Internodes Very short Medium Short Short

‘Diastu’ has the commercial name Flying Colors trailing Antique Rose and is patented under U.S. Plant Pat. No. PP13,949.

-   The plant:     -   -   Classification.—Botanical: Diascia barberae.         -   Parentage.—Female parent: A seedling named ‘B 120-1’ is one             of our seedlings from our B-generation of plants bred             in 1996. Pollen parent: A seedling named ‘B 118-1’ is one of             our seedlings from our B-generation of plants bred in 1996.         -   Growth habit.—Compact.         -   Plant height.—14-20 cm.         -   Spreading area of plant.—18-22 cm.         -   Growth rate.—Vigorous.         -   Strength.—Very good.         -   Branching character.—Freely branching and lateral branching             at every node.         -   Quantity of branches.—100-120 branches per plant.         -   Blooming period.—From April until November. -   The stem:     -   -   Diameter.—0.5-1.0 mm.         -   Shape.—Round.         -   Length.—12-14 cm.         -   Color.—141C.         -   Anthocyan pigmentation.—Absent.         -   Length of internode.—Vegetative growth: 8-15 mm. Generative             growth: 10-25 mm.         -   Pubescence.—Not pubescent. -   The foliage:     -   -   Phyllotaxis.—Opposite, decussate.         -   Number of leaves per lateral stem.—16-36.         -   Shape of blade.—Cordate.         -   Texture.—Upper side: Smooth. Lower side: Smooth.         -   Attachment to leaf.—Petiolate.         -   Venation.—Pinnate.         -   Color of veins.—Upper side: 137B. Lower side: 137D.         -   Leaf margin.—Crenate.         -   Leaf base.—Cordate.         -   Leaf apex.—Acute to rounded.         -   Length.—16-21 mm.         -   Width.—12-18 mm.         -   Depth of incision.—Less than 1 mm.         -   Color.—Upper side: 137A. Lower side: 137C.         -   Pubescence.—No pubescence.         -   Length of petiole.—2-3 mm.         -   Diameter of petiole.—1-2 mm.         -   Color of petiole.—137A.         -   Petiole surface texture.—Smooth. -   The bud:     -   -   Peduncle length.—5-25 mm, depending on season.         -   Peduncle width.—1-2 mm.         -   Peduncle shape.—Long and threadlike.         -   Peduncle color.—137A.         -   Size of the bud.—Length: 3 mm. Diameter: 3 mm.         -   Shape of the bud.—Oval.         -   Color of the bud.—157C.         -   Number of buds per lateral branch.—4-25.         -   Sepals.—Color: 141A (both upper and lower surfaces). Form:             Star-shaped. Number: 5, parted. Length: 1-2 mm. Width:             1-2 mm. Shape: Elliptic, apex acute, base truncate. Margin:             Entire. Texture: Smooth.         -   Bracts.—Color — Upper side: 141A. Color — Lower side: 141B.             Arrangement: Sessile. Number: One underneath every pedicel.             Length: 1-2 mm. Width: 1-2 mm. Apex: Acute. Base:             Subcordate. Margin: Entire. Texture: Smooth.         -   Pedicels.—Color: 141B. Shape: Threadlike. Length: 6-8 mm.             Diamter: 1 mm. -   The flower:     -   -   Inflorescence length.—3-6 cm.         -   Inflorescence diameter.—1-3 cm.         -   Flower width.—18-20 mm.         -   Flower length.—19-22 mm.         -   Flower depth.—6-8 mm.         -   Flower aspect.—Tipped upward and outward.         -   Borne.—Solitary.         -   Form.—Zygomorphic, five lobed, double nectar spur.         -   Cluster.—Raceme.         -   Color.—Young flower: Upper surface: 68B, each petal having             parts that are 69D, veined 69B. On the two upper banner             petals there is a small yellow (color 9B) indentation just             above the reproductive organs. Lower surface: Uniform 73C.             On the two upper banner petals there is a small light yellow             (color 9D) indentation at the base.         -   Color.—Older flower: Upper surface: 68B, only basal lip             petal has a small part that is color 69D. The indentation on             the banner petals stays the same color (yellow 9B). Lower             surface: Uniform 73C. On the two upper banner petals there             is a small light yellow (color 9D) indentation at the base.         -   Overlapping of the petals.—Separate.         -   Number of petals.—Five: two upper banner petals, two lateral             petals and one larger basal lip petal.         -   Overall shape of all petals (banner, lateral and basal lip             petals).—Spatulate.         -   Shape of the banner petals.—Apex rounded, base fused.         -   Shape of the lateral petals.—Apex rounded, base fused, lower             surface modified into nectar spurs.         -   Shape of the basal lip petal.—Apex truncate, base fused.         -   Petal margin.—Entire, starting as a young very undulate,             later just entire.         -   Petal surface texture.—Smooth.         -   Size of the banner petals.—Length: 3-4 mm. Width: 4-6 mm.         -   Size of the lateral petals.—Length: 3-4 mm. Width: 4-6 mm.         -   Size of the basal lip petal.—Length: 10-14 mm. Width: 10-14             mm.         -   Spur.—Length: 6-8 mm. Diameter: 1-2 mm at petal attachment.             Color: 186B.         -   Number of flowers per raceme.—20-30.         -   Fragrance.—No fragrance.         -   Lastingness of the bloom.—New florets continue to open in             one raceme over a period of 14 days.         -   Lastingness of one flower.—About 4 days depending on             temperature.         -   Flowering season.—Depending on climate from March until             December. -   The reproductive organs:     -   -   Androecium.—Stamen number: Three. Anther shape: Two-lobed.             Anther size: Less than 1 mm. Anther color: Yellow 7A. Amount             of pollen: Very much pollen. Pollen color: Yellow 7A.         -   Gynoecium.—Pistil number: 1. Stigma shape: Rounded. Pistil             length: 2-3 mm. Style length: 1-2 mm. Style color: Green             143A. Stigma color: Green white 157A. Ovary color: Green             134A. -   The fruit and the seed:     -   -   Seedset.—No fruit development or seedset has been observed. -   The roots:     -   -   Type of roots.—Fibrous.         -   Rooting habit.—Fine and freely branching.         -   Color.—Whiteish, N155A. -   Disease/pest resistance: Plants of the new Diascia have been noted     to be resistant to pathogens or pests common to Diascia. -   Temperature tolerance: Plants of the new Diascia have been observed     to tolerate temperatures from 0 to 35 degrees C. 

1. A new and distinct cultivar of Diascia plant named ‘Diasroroc,’ as substantially illustrated and described herein. 